This is an example of the ongoing ridiculousness that is ebook selling and purchasing.
Now, I know lots of people who have a Kindle, Nook, etc. and love it - that's great; I'm glad they're happy.
Not me, however - I am completely uninterested in jumping on the ebook bandwagon, at least at the moment in the current ebook ecosystem. The main reason is incompatibility - if I buy a Kindle and buy a bunch of books for it, I can't then later buy a Nook or a Sony eReader - if they suddenly become better than the Kindle - and take my books with me; I am locked into the Kindle.
If, as a publisher, you want to sell me DRM-free ebooks that I can read on whatever device I find superior at a given point in time, then I might get on your bandwagon. Until then, I'll stick with good old paper books, which, although big, bulky, and a little more expensive, are truly mine - I can take them anywhere, read them anywhere, and resell them if I want. And they have the side benefit of being nearly indestructible, save for water and fire - which is not something that you can say about ebook readers: